Yep its me matey, doing fine thanks.
"Building a ground cushion" - I can't think of an easier way to graphically describe something that increases or decreases based on hover height.
As I said, I don't know the origin of the term "cellular absorption" however, I would say that I do not consider it applicable only to long grass. I guess it's a more succinct term than "lack of ground cushion due to surface over which you hover".
I wouldn't like to argue the toss but recirculation says to me more power required due to accelerated air coming back through the disk for a second time, third time etc. I do not see this as the case in cellular absorption, I see only that the lack of a ground cushion means the requirement for OGE power.
I like the simpler explanations nowadays, short words, pictures where possible.